JOURNAL 404


Records of Natural Products
VOLUME & ISSUE
Year: 2011 Issue: 2 April-June
PAGES
p.108 - 116
STATISTICS
Viewed 1959 times.
AUTHORS
    Bektas Tepe, H. Askin Akpulat and Munevver Sokmen
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GRAPHICAL ABSTRACT


ABSTRACT


This study was designed to evaluate the chemical composition and antioxidant activity of the essential oils of Peucedanum longifolium and P. palimbioides. According to the GC-MS analysis, 35 compounds were accounted for 96.98% of the total oil of P. longifolia. Major components of the oil were 8-cedren-13-ol (33.74%), myristicin (8.03%), germacrene-D (7.73%) and D -3-carene (6.38%). In the case of P. palimbioides, 26 compounds were identified comprising the 98.96% of the total oil. The major compounds were described as a -pinene (35.45%), (E)-9-octadecenoic acid (23.57%) and b -pinene (20.19%). In general, P. palimbioides oil exhibited stronger than that of P. longifolia in all test systems. Especially in b -carotene/linoleic acid system, P. palimbioides showed strong activity against linoleic acid oxidation at 2.0 mg/mL concentration (90.58% ± 1.56). This value is too close to the synthetic antioxidants BHT and BHA at the same concentration (95.86% ± 0.23 and 93.05% ± 1.04, respectively). This plant also exhibited excellent chelating effect (90.39% ± 0.28) which is obviously greater than that of P. longifolium at 2.0 mg/mL concentration (24.12% ± 2.50). Chelating effect of the control agent EDTA was measured as 98.78% ± 0.78 (2.0 mg/mL).

KEYWORDS
  • Peucedanum longifolium
  • Peucedanum palimbioides
  • antioxidant activity
  • essential oil
  • chemical composition.